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NJETERS, PHOTO-LITHOGRAPHER, WASHINGTON. D c,

CHARLES A.-WILSON, OF OlNOINNATI, OHIO.

Letters Patent No. 82,467.'dated September 22, 1868.

IMPROVEMENT IN OIL-GLOBES FOR STEAM-GHESTS.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, CHARLES A. WILs0N,'of Cincinnati, Hamilton county, Ohio, have invented a new and useful Improvement in Oil-Globes; and Ihereby declare the'foll'owing' to be a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings, making part of this specification.

This invention relates to that classtof devices which are employed for introducing oil, tallow, and similar lubricants into the steam-chest of an engine; and my improvement consists in the arrangement and construction of the apparatus, whereby one cock will perform all the functions for which three are generally used,

thereby diminishing the number. of parts, and enabling the globe to be manufactured at a-reduced cost, and of more compact dimensions.

In the accompanying drawings- I Figure 1 is an axial section of an oil-globe embodying my improvement, the cock being in such a position as to open communication between the cup and globe, so as to permit of the latter being filled with oil.

Figure 2 is a similar section, with the cockturned, so as to allow the oil to descend into the steam-chest.

Figure 3 is a section through the hub of the cock, the plane of the section being at right angles to the two previous views, and the cock turned so as to close communication between the globe and steam-chest.

A represents the reservoir or globe, which is surmounted by a cup, B. The lower end of this globe has a screw-threaded neck, a, that engages with a similar thread on the upper'end of the hub C. The lower end of this hub terminates in a screw-threaded stem, 0, which permits of the device beingattached to thecap D of the steam-chest.

The hub C is traversed by the plug or cock E, which is maintained in position by the nut e and washer e,

and said cocks pierced with two apertures, F G, which pass completely through, at angles to the axis of the same.

The cocks are also provided with a recess H, and an axial channel, I, which, after proceedinginwardly a sutlicient distance, communioates'with the interior of the hub, by the branch i, as shown infig. 1.

The upper part of" the hub is pierced with three passages, J, K, and L, the first of which opens into the globe A, and the other two have inserted in them tubes M N. The tube M is suff ciently long to pass up and be secured in the cup B, while the other one, N, does 'not quite reach to the top of the interior of the globe.

The hub G is chambered out at O, and is provided with a channel, P, which communicates with the interior of the steam-chest.

Opening into the chamber 0 are two passages j Z, which are coincident with the ones J L.

The handle of the cock has a short stud, R, which projects upward when the cock is turned, so as to permit of the globe being filled, but it is evident that the stud may be'omitted, and a suitable letter or indicator ofany kind can be stamped on said handle.

My oil-globe is operated in the following manner:

When it is desired to charge the globe, the cock is turned until the stud or indicator R projects upwardly, in which position of the cook the recess H serves to connect thelower ends of the passages J and K, and at the same time the axial channel I z' is brought into communication with the other passage, L. As soon as oil is poured into the cup B, it runs down the tube M and passage K, into the recess'H, along'whichit flows, and then ascends the passageJ, and enters the globe.

The air which is displaced by the inflowing oil,escapes from the globe through the tube N, passage L, and axial channel I 2', as indicated by blne arrows in fig. 1.

Whenever it is desired to admit oil into the steam-chest, it can be effected by simply giving the cock Eonefourth a revolution, by'which act the aperture E is brought in communication with the passages Jj, and the other aperture, G, unites the other passages, L Z.

In this position of the cock, communication with the external air is closed, and steam enters from the valvechest through the channel P, and after passing up through the passages L l, aperture G, and tube N, it enters the globe A, as shown by .the red arrows in fig. 2. 1

The pressure of steam upon the surface of the oil contained in the globe, causes the contents of thelatter to hedischarged through the passages Jj, aperture F, chamber 0, and channel P, into the steam-chest, as clearly shown in fig. 2.

When a sufiieient quantity of oil has been allowed to flow into the steam-chest, the supply can be shut oil by turning the cock another quarter of a revolution, as shown in fig. 3, in which position of the-cock there is no communication whatever of the globe, either with the steam-chest, or with the external air.

It will be seen that this device is simple in its construction, not liable to get out of order, and it can be understood and operated with great facility.

This device avoids complication of parts, and at the same time furnishes a cheap and reliable article.

I claim herein as new, and of my invention- 7 The arrangement, as described, of the globe A, hub C, cock E, apertures F G, recess H, channel I 2', passages Jj, K, L Z, and the channel P, as herein explained.

In testimony of which invention, 1 hereunto set my hand.

CHARLES A. WILSON.

Witnesses: I

GEO. H. KNIGHT, JAMES H. LAYMAN. 

